Gabriella or Natalia?

Thanks to the miracle of embryo adoption, DH and I are expecting our first child in December (PTL, after 10 years of marriage). We are waiting to find out the sex. We are in agreement if it's a boy, but can't decide if it's a girl. Gabriella or Natalia Our last name is hyphenated and totals 5 syllables. Since the baby is expected during Advent, I was thinking that Natalia would be appropriate and if we ever have a second girl, regardless when she's born, we can call her Gabriella. Of course, the angel Gabriel is part and parcel of the whole Christmas story, even if the Annunciation doesn't fall during Advent, so there can be a case made for Gabriella as well. Dh wants to poll people to get a sense of what others think and why. So here's your chance to weigh in